Current to Pressure converter I/P Working Principle

  A current-to-pressure transducer called an I/P converter is used in industrial control systems. It is a compact module that converts an an...

  A current-to-pressure transducer called an I/P converter is used in industrial control systems. It is a compact module that converts an analogue current signal (I) into a pneumatic output for usage in various applications (P). Or to put it another way, it transforms electrical signals from a DC (direct current) signal into proportionate pneumatic pressure. In order to apply pneumatic pressure to valves, dampeners, actuators, or brakes and clutches inside an industrial mechanism, I/P transducers transform electrical impulses from a controller.

It's crucial to realise that there are normally two sorts of these converters available: an IP converter and an EP converter, before we go into the specifics of an IP converter. The IP converter typically transforms a 4-20mA signal into a pneumatic output. An EP converter differs in that it transforms a 0-10v input signal into a pneumatic output. While the EP converter uses voltage, the IP converter uses current.

IP Converter Working Principle

I/P Converters offer programmable flow volumes and control features, operating on a similar theory as proportional valves. I/P converters do away with the requirement for an external power source to run the pneumatically operated components by converting electric current into pneumatic output. I/P converters improve the control and efficiency of the machine in this way.

I/P converters work by turning electric current into force, which is subsequently converted into pressure. This process is related to the idea of an electromagnetic force balance principle. Simply said, electromagnetic effects are used to generate current in I/P converters that drive transducers for mechanical actuation. According to the force balancing principle, this action turns electrical current (usually 4 to 20 mA) into pneumatic pressure output (3 to 15 psi), which in turn proportionally controls the opening or closing of a valve.

I/P converters work by delivering a downstream flow of pressure that is proportional to the amount of electrical current flowing into the transducer's electrical circuit at any one time. I/P converters are a crucial interface that connects the controller with pneumatic brakes and clutches in web tension control systems.

IP Converter Current to Pressure converter also works on Flapper Nozzle method. 

The input is 4 to 20mA signal and the equivalent output is 3 to 15 PSI pressure.In the Current to Pressure converter, we typically provide an input current signal of 4 - 20 mA. We also provide a constant supply of 20 PSI to the Flapper Nozzle assembly. The electromagnet is activated when we provide an input current signal.